CN219501779U

CN219501779U - Breather valve and breathing machine

Info

Publication number: CN219501779U
Application number: CN202320348938.7U
Authority: CN
Inventors: 庞剑锋; 唐克锋; 唐彬桢
Original assignee: Ambulanc Shenzhen Tech Co Ltd
Current assignee: Ambulanc Shenzhen Tech Co Ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-08-11
Anticipated expiration: 2033-02-17

Abstract

The utility model belongs to the technical field of breathing equipment, and particularly relates to a breather valve and a breathing machine, wherein the breather valve comprises a breather valve main body and a breather valve clack, a gas channel is arranged in the breather valve main body, a first end of the gas channel is connected with a patient end, the breather valve clack is connected to the breather valve main body, and the breather valve clack can seal a second end of the gas channel; the breather valve is characterized in that an extraction opening is arranged on the breather valve main body and communicated with the gas channel, and the extraction opening is used for being connected with an air extraction device so as to enable negative pressure to be generated in the gas channel. According to the breather valve provided by the embodiment of the utility model, the air extraction opening is arranged on the breather valve main body, and the air in the air channel can be extracted through the air extraction opening, so that negative pressure is generated, and the negative pressure is formed in the connecting pipeline between a patient and the breather valve, so that the effect of assisting the patient in sputum excretion is realized.

Description

Breather valve and breathing machine

Technical Field

The utility model belongs to the technical field of breathing equipment, and particularly relates to a breather valve and a breathing machine.

Background

Ventilators are commonly used clinically as a medical device that can replace or assist a patient in performing mechanical ventilation. In the working process of the breathing machine, the more accumulated sputum is in the lung of a patient, and the patient using the breathing machine cannot automatically discharge sputum under normal conditions, if sputum and sputum scab accumulate in the respiratory tract, the unobstructed and effective ventilation of the respiratory tract can be directly affected, so that the patient is caused to breathe rapidly, and respiratory failure or atelectasis can be caused seriously. Therefore, timely and effective removal of sputum is highly desirable when using a ventilator.

The respiratory valve is an important component of the breathing machine, and is provided with an expiration end connected with the breathing part of a patient, and the main function of the respiratory valve is to assist the patient to exhale carbon dioxide, and after the expiration airflow enters the respiratory valve, the airflow can flow out from the exhaust pipe after passing through the air pressure diaphragm.

However, the conventional respiratory valve has only a respiratory function and cannot assist the user in expectoration.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: aiming at the problem that the existing breather valve can not assist a user in expectoration, the breather valve and a breathing machine are provided.

In order to solve the technical problems, in one aspect, an embodiment of the present utility model provides a breather valve, including a valve seat, a breather valve main body, and a breather valve flap, where the valve seat has a cavity therein, the breather valve main body is disposed in the cavity, a gas channel is disposed in the breather valve main body, a first end of the gas channel is used for connecting with a breathing part of a patient, the breather valve flap is connected to the breather valve main body, a gas tap is disposed on the valve seat, a pressure cavity is separated between the breather valve flap and the valve seat, the gas tap is communicated with the pressure cavity, and the gas tap is used for introducing or extracting gas into the pressure cavity, so that the breather valve flap seals or opens a second end of the gas channel;

the breather valve is characterized in that an extraction opening is formed in the breather valve main body and communicated with the gas channel, and the extraction opening is used for being connected with an air extraction device.

Optionally, the breather valve further includes a filter component, a first air extraction pipeline is arranged on the breather valve main body, the air extraction opening is located at one end, far away from the breather valve main body, of the first air extraction pipeline, and the filter component is installed on the first air extraction pipeline.

Optionally, the filter component includes silica gel gasket and filter screen, the inside of first bleed pipeline is provided with the step face, the filter screen sets up the inside of first bleed pipeline, the outer fringe butt of filter screen is in on the step face, the silica gel gasket is connected on the first bleed pipeline and compress tightly on the outer fringe of filter screen.

Optionally, the silica gel gasket includes inboard gasket, outside gasket and connects inboard gasket with transition gasket between the outside gasket, inboard gasket's extending direction with the extending direction of outside gasket is the same, inboard gasket is attached on the internal face of first bleed duct, the one end butt of keeping away from of inboard gasket the transition gasket the filter screen, outside gasket is attached on the external face of first bleed duct, transition gasket is attached on the axial outside terminal surface of first bleed duct.

Optionally, the air cock sets up the first end of disk seat, the disk seat with the breather valve main part cooperation compresses tightly the border of breather valve clack.

Optionally, the breather valve further comprises a locking knob connected to the second end of the valve seat to lock the breather valve body within the cavity.

Optionally, a second air extraction pipeline is arranged on the valve seat, the first air extraction pipeline is communicated with the second air extraction pipeline, and the silica gel gasket can seal a gap between the first air extraction pipeline and the second air extraction pipeline.

Optionally, the breather valve main body includes a first tubular portion and a second tubular portion, the gas channel is disposed inside the first tubular portion, the second tubular portion is sleeved outside one end of the first tubular portion, which is close to the breather valve flap, and the first air extraction pipeline is connected to the periphery of the first tubular portion;

an air outlet cavity is arranged between the inner wall surface of the second tubular part and the outer wall surface of the first tubular part, the outer edge of the respiration valve clack is abutted to the second tubular part, and when the second end of the air channel is opened, the air channel is communicated with the air outlet cavity.

Optionally, a first air outlet channel is arranged on the valve seat, a second air outlet channel is arranged on the second tubular part, and the air outlet cavity is sequentially communicated with the second air outlet channel and the first air outlet channel.

In another aspect, embodiments of the present utility model provide a ventilator comprising a respiratory valve as described above.

According to the breather valve provided by the embodiment of the utility model, the air extraction opening is arranged on the breather valve main body, and the air in the air channel can be extracted through the air extraction opening, so that negative pressure is generated, and the negative pressure is formed in the connecting pipeline between a patient and the breather valve, so that the effect of assisting the patient in sputum excretion is realized.

Drawings

FIG. 1 is a schematic illustration of a respiratory valve according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a breather valve provided in an embodiment of the utility model;

FIG. 3 is a schematic cross-sectional view of a breather valve according to an embodiment of the utility model;

FIG. 4 is another schematic cross-sectional view of a respiratory valve according to an embodiment of the present utility model;

fig. 5 is an enlarged schematic view at a in fig. 4.

Reference numerals in the specification are as follows:

1. a breather valve body; 11. a first tubular portion; 111. a gas channel; 12. a second tubular portion; 121. a second outlet channel; 13. an air outlet cavity; 14. a first bleed duct; 15. an extraction opening;

2. a respiratory valve flap; 21. a valve clack body; 22. an elastic part; 23. a limit part;

3. a filter assembly; 31. a silica gel pad; 311. an inner spacer; 312. an outer spacer; 313. a transition pad; 32. a filter screen;

4. a valve seat; 41. a cavity; 42. a second bleed duct; 43. an air tap; 44. a pressure chamber; 45. a first outlet channel;

5. locking the knob.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 5, an embodiment of the present utility model provides a breather valve, which includes a valve seat 4, a breather valve body 1 and a breather valve flap 2, wherein a cavity 41 is provided in the valve seat 4, the breather valve body 1 is disposed in the cavity 41, a gas channel 111 is disposed in the breather valve body 1, the gas channel 111 penetrates through the breather valve body 1, a first end of the gas channel 111 is used for being connected with a breathing portion of a patient, and the breather valve flap 2 is connected to the breather valve body 1.

The valve seat 4 is provided with an air tap 43, after the breather valve body 1 is arranged in the cavity 41, a pressure cavity 44 is separated between the breather valve clack 2 and the second end of the valve seat 4, the air tap 43 is communicated with the pressure cavity 44, and the air tap 43 is used for introducing or extracting air into the pressure cavity 44 so that the breather valve clack 2 closes or opens the second end of the air channel 111.

The gas channel 111 is the passageway that is used for patient's expiration air current, the breathing valve clack 2 can be opened or seal the gas channel 111, when the gas channel 111 is in the open state, the air current is followed the first end flow direction second end of gas channel 111, the exhaust gas, when the gas channel 111 is in the closed state, be provided with extraction opening 15 on the breather valve main part 1, extraction opening 15 with gas channel 111 intercommunication, extraction opening 15 is used for connecting the extraction equipment, the second end of gas channel 111 is sealed by the breathing valve clack 2, can bleed through extraction opening 15 can make produce the negative pressure in the gas channel 111.

According to the breather valve provided by the embodiment of the utility model, the air extraction opening 15 is arranged on the breather valve main body 1, and the air in the air channel 111 can be extracted through the air extraction opening 15, so that negative pressure is generated, and the negative pressure is formed in the connecting pipeline between a patient and the breather valve, so that the effect of assisting the patient in sputum excretion is realized.

In an embodiment, as shown in fig. 2 and 5, the breather valve further includes a filter assembly 3, a first air extraction pipe 14 is disposed on the breather valve main body 1, the first air extraction pipe 14 is communicated with the air channel 111, the air extraction opening 15 is located at one end of the first air extraction pipe 14 away from the breather valve main body 1, the filter assembly 3 is mounted on the first air extraction pipe 14, and the air extracted can be filtered by the filter assembly 3, so as to prevent dirt from polluting the air extraction equipment.

In an embodiment, the first air extraction pipe 14 is connected to the outer circumference of the breather valve body 1, and the central axis of the first air extraction pipe 14 is perpendicular to the central axis of the gas channel 111.

In an embodiment, as shown in fig. 2 and 5, the filter assembly 3 includes a silica gel pad 31 and a filter screen 32, a step surface is disposed in the first air extraction pipe 14, the filter screen 32 is disposed in the first air extraction pipe 14, an outer edge of the filter screen 32 abuts against the step surface, the installation position of the filter screen 32 is limited by the step surface, and the silica gel pad 31 is connected to the first air extraction pipe 14 and compresses the outer edge of the filter screen 32, so as to prevent the filter screen 32 from being separated from the first air extraction pipe 14.

As shown in fig. 5, the first air extraction pipe 14 is of a tubular structure, the first air extraction pipe 14 has a first section with a first wall thickness and a second section with a second wall thickness, the first wall thickness is smaller than the second wall thickness, the second section is connected to the breather valve main body 1, the first section is located at one end of the first air extraction pipe 14 far away from the breather valve main body 1, the junction of the first section and the second section forms the step surface, the diameter of the filter screen 32 is consistent with the inner diameter of the first section, when the filter screen 32 is placed in the first air extraction pipe 14, the junction of the first section and the second section is clamped, and the outer edge of the filter screen 32 is abutted to the part of the end surface of the second section, which is not covered by the first section.

In one embodiment, the filter 32 is a steel filter.

In an embodiment, as shown in fig. 5, the silica gel gasket 31 includes an inner gasket 311, an outer gasket 312, and a transition gasket 313 connected between the inner gasket 311 and the outer gasket 312, the extending direction of the inner gasket 311 is the same as the extending direction of the outer gasket 312, the cross-sectional pattern of the silica gel gasket 31 in the extending direction is in a U shape, the first air extraction pipe 14 is inserted into the U-shaped structure, the inner gasket 311 is attached to the inner wall surface of the first air extraction pipe 14, one end of the inner gasket 311 away from the transition gasket 313 abuts against the filter screen 32, the outer gasket 312 is attached to the outer wall surface of the first air extraction pipe 14, and the transition gasket 313 is attached to the outer axial end surface of the first air extraction pipe 14, that is, the transition gasket 313 is attached to one end of the first air extraction pipe 14 away from the breather valve body 1.

The silica gel pad 31 is fixed on the first air exhaust pipeline 14 through an encapsulation process, so that the connection stability of the silica gel pad 31 can be ensured.

In an embodiment, as shown in fig. 3 and 4, the air tap 43 is disposed at a first end of the valve seat 4, and after the breather valve body 1 is disposed in the cavity 41, the valve seat 4 and the breather valve body 1 cooperate to jointly compress the edge of the breather valve flap 2, so that the pressure chamber 44 forms a closed state, and is communicated with the outside 1 through the air tap 43.

When the breather valve assists the patient to discharge phlegm, when the air tap 43 is used for introducing air into the pressure cavity 44, the pressure in the pressure cavity 44 is increased, the breather valve clack 2 is tightly pressed on the breather valve main body 1 under the action of air pressure, and the air cannot leak from the second end of the air channel 111, so that the negative pressure in the air channel 111 can be formed quickly.

When the breather valve is in normal operation and gas is pumped out of the pressure cavity 44 through the air tap 43, negative pressure is formed in the pressure cavity 44, so that the breather valve clack 2 bulges towards the direction of the air tap 43 under the action of negative pressure, the breather valve clack 2 does not block the second end of the gas channel 111, and gas exhaled by a patient enters from the first end of the gas channel 111 and is exhausted from the second end.

In an embodiment, as shown in fig. 2, the breather valve further includes a locking knob 5, where the locking knob 5 is connected to the second end of the valve seat 4, so as to lock the breather valve body 1 in the cavity 41, the locking knob 5 is detachably connected to the valve seat 4, and after the locking knob 5 is rotated to detach the locking knob 5, the breather valve body 1 can be taken out from the valve seat 4, so that cleaning and disinfection of the breather valve body 1 are facilitated.

In an embodiment, as shown in fig. 2 and fig. 4, the valve seat 4 is provided with a second air extraction pipe 42, after the breather valve body 1 is installed in the cavity 41, the first air extraction pipe 14 and the second air extraction pipe 42 are in butt joint communication, the central axis of the first air extraction pipe 14 and the central axis of the second air extraction pipe 42 are coincident, the silica gel gasket 31 can seal a gap between the first air extraction pipe 14 and the second air extraction pipe 42, preferably, the transition gasket 313 abuts against the second air extraction pipe 42, and seals the gap between the first air extraction pipe 14 and the second air extraction pipe 42, so that when air extraction is performed, gas is prevented from entering the cavity 41 through the gap, negative pressure in the gas channel 111 is prevented from being affected, and the air flow is sequentially extracted after passing through the gas channel 111, the first air extraction pipe 14 and the second air extraction pipe 42.

In an embodiment, as shown in fig. 2 and 3, the breather valve body 1 includes a first tubular portion 11 and a second tubular portion 12, the gas channel 111 is disposed inside the first tubular portion 11, the length of the second tubular portion 12 in the axial direction is smaller than the length of the first tubular portion 11, the second tubular portion 12 is sleeved on the outer side of one end of the first tubular portion 11 near the breather valve flap 2, the first air extraction pipe 14 is connected to the outer periphery of the first tubular portion 11, an air outlet cavity 13 is disposed between the inner wall surface of the second tubular portion 12 and the outer wall surface of the first tubular portion 11, the air outlet cavity 13 is used for communicating with the outside, and the air outlet cavity 13 is disposed around the gas channel 111. The outer edge of the respiration valve clack 2 is abutted against the second tubular part 12, the middle part of the respiration valve clack 2 is abutted against the first tubular part 11, and when the respiration valve clack 2 opens the second end of the gas channel 111, the gas channel 111 is communicated with the gas outlet cavity 13.

Further, as shown in fig. 3 and 4, the respiratory valve clack 2 includes a valve clack body 21, an elastic portion 22 and a limiting portion 23, the elastic portion 22 is connected between an outer edge of the valve clack body 21 and an inner edge of the limiting portion 23, the valve clack body 21 is located at a center of the respiratory valve clack 2, the limiting portion 23 is located at an edge of the respiratory valve clack 2, the limiting portion 23 is connected to the second tubular portion 12, the elastic portion 22 is located between the first tubular portion 11 and the second tubular portion 12, and the valve clack body 21 abuts against the first tubular portion 11.

The limiting part 23 is clamped by the second tubular part 12 and the valve seat 4 in a matched manner, the elastic part 22 has certain elasticity, so that the valve clack body 21 has displacement along the axial direction of the gas channel 111, when the gas is introduced into the pressure cavity 44 through the gas nozzle 43, the valve clack body 21 tightly abuts against the first tubular part 11, and the gas channel 111 and the gas outlet cavity 13 are blocked. When the air tap 43 withdraws air from the pressure chamber 44, the elastic part 22 deforms, the valve clack body 21 moves along the axial direction of the air channel 111, the valve clack body 21 leaves the first tubular part 11, and the air channel 111 is communicated with the air outlet chamber 13.

In an embodiment, as shown in fig. 2 and 3, the valve seat 4 is provided with a first air outlet channel 45, the second tubular portion 12 is provided with a second air outlet channel 121, a central axis of the first air outlet channel 45 and a central axis of the second air outlet channel 121 are coincident, the second air outlet channel 121 is communicated with the air outlet cavity 13, and the air outlet cavity 13 is sequentially communicated with the second air outlet channel 121 and the first air outlet channel 45. When the second end of the gas channel 111 is opened by the respiration valve clack 2, the gas channel 111 is sequentially connected to the gas outlet cavity 13, the second gas outlet channel 121, and the first gas outlet channel 45.

The breather valve has two functions of assisting the patient to exhale and assisting to expel phlegm.

When the patient exhales, the air is pumped out of the pressure cavity 44 through the air tap 43 to form negative pressure, the valve clack body 21 leaves the first tubular part 11 and does not block the second end of the air channel 111, the air channel 111 is communicated with the air outlet cavity 13, and the air exhaled by the patient enters from the first end of the air channel 111 and passes through the air channel 111, the air outlet cavity 13, the second air outlet channel 121 and the first air outlet channel 45 to be discharged.

When assisting the patient to discharge the sputum, the air tap 43 is used for filling air into the pressure cavity 44, the air pressure is increased, the valve clack body 21 is tightly abutted against the first tubular part 11 under the action of the air pressure to seal the second end of the air channel 111, and the air extraction opening 15 is connected with air extraction equipment, so that negative pressure is formed in the air channel 111 to assist the patient to discharge the sputum.

On the other hand, the embodiment of the utility model provides a breathing machine, which comprises the breathing valve.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The breather valve is characterized by comprising a valve seat, a breather valve main body and a breather valve clack, wherein a cavity is formed in the valve seat, the breather valve main body is arranged in the cavity, a gas channel is arranged in the breather valve main body, a first end of the gas channel is used for being connected with a breathing part of a patient, the breather valve clack is connected to the breather valve main body, an air tap is arranged on the valve seat, a pressure cavity is separated between the breather valve clack and the valve seat, the air tap is communicated with the pressure cavity, and the air tap is used for introducing or extracting gas into the pressure cavity so as to enable the breather valve clack to close or open a second end of the gas channel;

2. The breather valve of claim 1, further comprising a filter assembly, wherein the breather valve body is provided with a first bleed conduit, the bleed port is located at an end of the first bleed conduit remote from the breather valve body, and the filter assembly is mounted on the first bleed conduit.

3. The breather valve of claim 2, wherein the filter assembly comprises a silica gel gasket and a filter screen, the interior of the first bleed duct is provided with a stepped surface, the filter screen is disposed in the interior of the first bleed duct, the outer edge of the filter screen abuts against the stepped surface, and the silica gel gasket is connected to the first bleed duct and is pressed against the outer edge of the filter screen.

4. The breather valve of claim 3, wherein the silica gel gasket comprises an inner gasket, an outer gasket and a transition gasket connected between the inner gasket and the outer gasket, the extension direction of the inner gasket is the same as the extension direction of the outer gasket, the inner gasket is attached to the inner wall surface of the first air extraction pipe, one end, far away from the transition gasket, of the inner gasket abuts against the filter screen, the outer gasket is attached to the outer wall surface of the first air extraction pipe, and the transition gasket is attached to the outer axial end surface of the first air extraction pipe.

5. The respiratory valve of claim 1, wherein the air tap is disposed at a first end of the valve seat, the valve seat and the respiratory valve body cooperatively compressing an edge of the respiratory valve flap.

6. The breather valve of claim 3, further comprising a locking knob coupled to the second end of the valve seat to lock the breather valve body within the cavity.

7. The breather valve of claim 6, wherein a second bleed conduit is provided on the valve seat, the first bleed conduit and the second bleed conduit are in communication, and the silicone gasket is capable of sealing a gap between the first bleed conduit and the second bleed conduit.

8. The breather valve of claim 2, wherein the breather valve body comprises a first tubular portion and a second tubular portion, the gas passage is disposed inside the first tubular portion, the second tubular portion is sleeved outside an end of the first tubular portion near the breather valve flap, and the first air extraction pipe is connected to an outer periphery of the first tubular portion;

9. The breather valve of claim 8, wherein the valve seat is provided with a first air outlet passage, the second tubular portion is provided with a second air outlet passage, and the air outlet chamber is in communication with the second air outlet passage and the first air outlet passage in sequence.

10. A ventilator comprising a breather valve according to any one of claims 1-9.